Finding the Fourth Proportional to 691,457.41, 1,036,810.23 and 311,933.63
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Solution
The fourth proportional to 691,457.41, 1,036,810.23 and 311,933.63 is: 467,730.88
Step by Step Solution
- Step 1: Write the proportion equation
691,457.41 : 1,036,810.23 = 311,933.63 : x - Step 2: Convert to fraction form
691,457.41/1,036,810.23 = 311,933.63/x - Step 3: Cross multiply
691,457.41x = 1,036,810.23 × 311,933.63 - Step 4: Simplify right side
691,457.41x = 323,415,980,087.31 - Step 5: Solve for x
x = 323,415,980,087.31/691,457.41 - Step 6: Final answer
x = 467,730.88
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.